Cuia is a beautifully crafted mate cup made out of a calabash for chimarrao. Handmade in Brazil by local artisans, this unique cuia gourd is great for your Brazilian mates . While using the mate-cup a discolouration of the pumpkin takes place. This is a natural process which occurs through the absorption of the tea. Before the first use of the cup it should be "cured" in order to ensure a longer life. Its hand made products so every one is different and it might be slightly different from shown on photo. The pumpkin can display in his first uses a loss of colour on his outside. Please, use a cloth to dry it after contact with water and do not leave the pumpkin on sensitive surfaces. As gourds are a natural item, the item you receive may differ slightly from the photos. It is also important to expect an item that is not smooth and finished on the inside like a ceramic or wooden mug. The inside is likely to be rough. It may have some rough patches and some leftover debris such as pith and seeds.